534 search results for “pollen analysis” in the Public website
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The ecological footprint of European colonization at the doorway to the Americas
Historical figures such as Columbus have returned to the centre of public debate. Much remains to be discovered about his legacy and current impact on our society. A new study shows the ecological footprint that the arrival of Europeans left in the Caribbean islands.
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A family of mysterious plants that can be traced back to Gondwana
The strange tropical plants belonging to the Corsiaceae family first emerged millions of years ago on the supercontinent of Gondwana. That is what Leiden University researcher Constantijn Mennes concludes in an article in the Journal of Biogeography.
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Random walks: wandering the streets like a group of drunk students
Mathematician Oliver Nagy still vividly remembers the first time he learned about a random walk. ‘The lecturer told us to imagine a company of drunken students who wander in the streets. At each intersection, they would spin one of them around and all would go in the direction where he or she came to…
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Ice Age hunters destroyed forests throughout Europe
Large-scale forest fires started by prehistoric hunter-gatherers are probably the reason why Europe is not more densely forested. This is the finding of an international team, including climate researcher Professor Jed Kaplan of the University of Lausanne and archaeologist Professor Jan Kolen of Leiden…
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Intelligent Workflows for Automated Analysis of Mass Spectrometry- based Proteomics Data
PhD defence
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Why We All Need Philosophical and Scientific Analysis in the History of Philosophy, History of Political Thought, and Intellectual History
Lecture, PCNI Research Seminar
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Environmental benefits in transport sector often disappointing
Eco-innovations like more economical cars do not generate the environmental benefits predicted by the manufacturers. This is the result of the so-called rebound effect, concludes Leiden industrial ecologist David Font Vivanco on the basis of new algorithms. PhD defence 3 March.
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Century-old Physics Assumption Proven Wrong
A new discovery proves that it matters which approach researchers take in analyzing large physical, social or biological systems that have a networked structure. Ever since the early 1900s, scientists have assumed each approach is equivalent. Now many results in statistical physics may no longer hold.…
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LED3 Lecture: Chemical Probes for imaging and analysis of hydrolase function in Cancer, Infectious Diseases and the microbiome
Lecture
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Jonathan Hak on the paramount importance of the truth – and why we shouldn’t always take images at face value
Hak, lawyer, international imagery law lecturer, and adjunct associate professor, talks about his PhD research on the use of images in international criminal prosecutions. He was a public prosecutor in Canada for over 30 years and dealt primarily with the prosecution of homicides and other major cri…
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French wh-in-situ option in the acquisition of L2 English questions: An analysis of transfer
Lecture, Com(parative) Syn(tax) Series
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catalytic reduction by an iron porphyrin through spectroelectrochemical analysis
Lecture
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Jason Laffoon's Archaeometry article in top 20 most read
The research article ‘The life history of an enslaved African’ is one of the top 20 read Archaeometry articles in the period of January 2017 to December 2018.
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socio-linguistics: using machine learning to automate annotation and analysis in historical corpora
Lecture, Sociolinguistics series
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Are tropical forests threatened by democracy?
Democracy may lead to more deforestation in the tropics. So write environmental scientist Joeri Morpurgo and his colleagues in the prominent scientific journal Biological conservation. They found that competitive elections are associated with more loss of tropical rainforest than elections without competition.…
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Sport Data Center appointed as Certified Partner of Sportinnovator
The Sport Data Center, a consortium of universities of which Leiden University is leader, is recognised as a Certified Partner of Sportinnovator. This makes the Sport Data Center an important part of the Sportinnovator ecosystem. Sportinnovator is the national programme for sports innovation, initiated…
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Arnold Tukker receives honorary doctorate at Swedish university
As one of the first environmental scientists ever, Arnold Tukker received the honorary doctorate at Linköping University on Saturday 12 November. This Swedish university awarded Tukker for his scientific work to establish a circular economy.
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Digital classes about the language of lobbying in february online
What is lobbying? How does it work? Starting February 2 Leiden University professors, Jaap de Jong and Arco Timmermans will introduce high school students to the language of lobbying. Digital classes together with a teacher's kit will be available in Dutch from February.
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Digging deeper into Soils, Sediment and Society with Peter Houben
A group of 12 LUC students went to the Eifel mountains for the annual field trip within the course 'Soils, Sediment, and Society' of Dr. Peter Houben. Dr. Peter Houben is Assistant Professor of Environmental Earth Sciences and Sustainability at Leiden University College The Hague.
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Adapting to climate change: how leftover seeds can help birds breed
When migrating from China to Siberia, a few intermediary food stops are not a luxury. For migratory birds, they are even crucial for their survival. However, climate change is altering the seasonal availability of food at these stops. Environmental scientist Yali Si has discovered that because of this,…
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The Ambassador of the Dominican Republic visits the Faculty of Archaeology
Monday 6 February the Faculty of Archaeology had the honour to receive the e Ambassador of the Dominican Republic, H.E. Dr. Juan Bautista Durán. The motive of the visit was to discuss the collaboration between the university and the Dominican Government after the signing of a new Memorandum of Understanding…
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How microscopic scallops wander
All microscopic objects, from enzymes to paint particles, are jittering constantly, bombarded by solvent particles: this is called Brownian motion. How does this motion change when the object is flexible instead of rigid? Ruben Verweij, Pepijn Moerman and colleagues published the first measurements…
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LUMC researchers: high levels of lipids in blood protect against allergies
People with relatively high levels of lipids in their blood are less likely to develop allergic conditions such as eczema and asthma. These lipids cause genes that play a key role in allergic reactions to be less active. Researchers from the Leiden University Medical Center (LUMC) have published an…
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These researchers turn mathematical models into healthcare solutions
Two Leiden researchers have demonstrated how mathematics can improve our healthcare. Daniel Gomon has developed a model that contributes to the quality of care in hospitals. Marta Spreafico works on an app that helps physicians make well-informed decisions about the treatment of a certain type of cancer.…
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How polluting are the clothes in your closet?
Cotton is the most widely used natural fibre for clothes. But how polluting are our jeans and shirts actually? Environmental scientist Laura Scherer coordinated an international research project on the impacts of cotton. ‘The purchases of consumers in Europe can contribute to water scarcity in China…
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LUCDH Lunchtime Speaker Series: What Use are Networks Anyway?
Lecture
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Meet archaeologist Tuna Kalayci: ‘How can we integrate robots into archaeology?’
In the course of 2020 the Faculty of Archaeology was bolstered by some new staff members. Due to the coronavirus situation, sadly, this went for a large part unnoticed. In a series of interviews we are catching up, giving the floor to our new colleagues. We kick off with Dr Tuna Kalayci, who joined…
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Drones help write new history of Caribbean
Drones are proving to be a good means of mapping man-made changes in the landscape. Geophysicist Till Sonneman and his colleagues (archaeology) are experimenting with drones in inaccessible areas of the Caribbean.
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Mike Field to head the Bioarchaeology Labs
Dr Mike Field is the newly appointed Head of the Bioarchaeology Laboratories (Zoology, Human Osteology, and Botany). The new laboratories provide members of the Faculty with a first class infrastructure. “I see the laboratories as available for everyone to use.”
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‘Data science has crept into the faculties’ DNA’
From 14 to 29 PhD candidates, seven actively involved faculties and, above all, lots of innovative interdisciplinary research, all with data science as the common denominator. The university’s Data Science Research Programme (DSO) has proven so successful that after five years on a start-up grant it…
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A long-term perspective on human niche construction and alteration of ecosystems
Dr. Katharine MacDonald (Faculty of Archaeology) sketches the background to a recent paper in Science Advances, co-authored by her and other members of the Liveable Planet team.
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Border tax on CO2 offers huge opportunity to fight climate change
A tax on CO2 emissions from products entering the EU offers unprecedented opportunities in the fight against global warming. That is the conclusion of research on which Leiden environmental scientist Hauke Ward collaborated. ‘A new world is opening up,’ Ward says. ‘But success hinges on how we involve…
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How nature boosts the health of city residents
Your local city park may be improving your health, according to a new paper led by Leiden environmental scientist Roy Remme. In Proceedings of the National Academy of Sciences Remme and his colleagues describe how access to nature increases people’s physical activity—and therefore overall health—in…
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Conflict Escalation: Explaining the Rise of Violence
Lecture